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Air-Compressor.

Description: Patent for a more efficient air compressor with high and low pressure chambers formed of mating sections that can be detached to make repairs to the piston as necessary.
Date: April 1, 1913
Creator: Murphy, Edward
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Stenographic-Writing Means

Description: Patent for improvements in stenographic-writing (typewriting). The object of the invention being "to provide a keyboard comprising keys to cooperate with suitable printing means, and to so arrange said keys...to facilitate the speed at which the writing can be accomplished" (lines 14-20).
Date: April 1, 1913
Creator: Ireland, Ward S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Puncture-Proof Tire

Description: Patent for improved armor in tires so they do not puncture as quickly or as easily, including illustrations.
Date: April 1, 1913
Creator: Hibbs, Cassell De
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gearing

Description: Patent for gearing for a flying machine. This gearing will allow for two independent drive shafts to work with tow independent engines to allow both engines to connect to either or both draft shafts.
Date: April 1, 1913
Creator: Herrmann, Ernst W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Drill

Description: Patent for a new drill that is used for pipes in wells, including illustrations.
Date: April 1, 1913
Creator: O'Brien, Robert P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rock-Drill.

Description: Patent for a composite rock drill composed of granular metal or minerals held together in a binder to present sharp points for the efficient drilling of rock and other substances.
Date: April 1, 1913
Creator: Blackburn, Julian E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Saw Gage and Filing Clamp

Description: Patent for a combined saw gage and clamp which can be "applied to a saw blade to gage the depth of the cut as well as reversed and used as a clamp for the saw blade in setting the teeth" (lines 16-18).
Date: April 1, 1913
Creator: Curby, George W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Floor-Sweeping Compound

Description: Patent for an improved floor-sweeping compound which changes the traditional woody filler with a less flammable and more absorbent mineral wool filler.
Date: April 1, 1913
Creator: Boddeker, James A. & Stratford, John E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Horse Detacher

Description: Patent for a new and improved horse detacher which allows the driver to unhitch a horse without exiting the carriage or wagon, including specifications and illustrations.
Date: April 1, 1913
Creator: Carter, William Otis
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Powder Blower

Description: Patent for a new and improved powder blower used to insert powder medicine into the vagina, including illustrations and instructions.
Date: April 1, 1913
Creator: Woodward, Mortimer Lee
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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